BT-C3400 V31 Opus Battery Charger Analyzer Li-ion 18650 26650 3100 NiMH AA AAA C

DC Workshop
(36798)
Registered as a business seller
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US $47.60
ApproximatelyEUR 41.16
Condition:
New
3,671 sold
This one's trending. 3671 have already sold.
People want this. 955 people are watching this.
Postage:
Free USPS Ground Advantage®.
Located in: Sacramento, California, United States
Delivery:
Estimated between Wed, 12 Nov and Fri, 14 Nov to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the delivery service selected, the seller's delivery history and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Seller pays for return postage.
Payments:
    Diners Club

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eBay item number:331325504524
Last updated on 05 Nov, 2025 15:47:33 GMTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging ...
Brand
OPUS
Compatible Battery Sizes
18500, 17500, 26650, 14650, 17670, 18650, 10440, 14500, 19670, 25500, 18350, Rcr123a
Type
Car Charger
Battery Capacity
4
Voltage
3.6 V
MPN
BTC3400
Chemical Composition
Li-Ion
UPC
0727908590739
Category

Item description from the seller

Seller business information

I certify that all my selling activities will comply with all EU laws and regulations.

About this seller

DC Workshop

99.8% positive Feedback•111K items sold

Joined Sep 1998
Usually responds within 24 hours
Registered as a business seller
Battery Chargers and Rechargeable Batteries. Battery test and analyzing chargers.
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable postage cost
5.0
Delivery time
5.0
Communication
5.0

Popular categories from this shop

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Battery Chargers TestersOther

Seller Feedback (40,548)

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  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Wow! Exactly as described. This C3400 is one of the most useful things I've purchased ever. Seller great, quick ship, packed like a champ. Used the C3400 over 7 days on my old Eneloops for refresh/status. To my surprise, my 16 yr old Sanyo Eneloops from Costco still have the juice. A few were off, but the bulk of AAs & AAAs had near capacity; many AAAs were over 800! Stunning. Opus put back tons of capacity in these batts. Recommend BT-C3400 and this seller for best $$$. Research time pays off!
  • *****- Feedback left by buyer.
    Past year
    Verified purchase
    Takes a little while to learn all of the operating modes but beside charging lithium and nickel chemistry batteries, the BT-3400 also does a good job of refreshing (important for nickel chemistry batteries that have been sitting for a while) as well as determining the remaining amp-hour capacity of whatever batteries it can accept. It’s quite consistent in what capacities it reported for a few random batteries I had it test.
  • *****- Feedback left by buyer.
    Past year
    Verified purchase
    Timely arrival and product works as expected. It condition was in original package and unopened. This was the best value I found for this product. Product was not damaged and perfect in appearance. I would recommend this product. It is an excellent charger and seller.
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